Horizontal Scroll Bar at the bottom of my website???

Hello, I need to get rid of the horizontal scroll bar at the bottom of my website page. I have tried everything! Overflow: hidden, overflow: auto, etc etc. It will not seem to go away!

Some questions I have....
1) is my background image too large producing the scrolling bar?
2) when I do put an overflow: hidden on my body tag, then my drop down navigation menu moves so I need to know why that is getting messed up when I try to fix the horizontal scroll bar in the body tag